jonathankatz.com

Observed Aug 9, 2026, 22:42 UTC (5d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of jonathankatz.com was taken 5d ago

jonathankatz.com is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting jonathankatz.com under watch moves it to the fast lane, where DomainDrift re-checks it about every 5 minutes and signs each reading, so a change becomes a dated event within minutes instead of waiting for the sweep to come round.

Watch jonathankatz.com Watching a domain needs a DRM3 account. The reading above stays free and public either way.
Up right now
Secured byZeroSSL
1 subdomain · domcop
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat jonathankatz.com actually stands on - every host below is a signed observation
jonathankatz.com
A / AAAA
15.204.159.118
unattributedserves the site
NS
ns3.jethostns.comns4.jethostns.comns1.jethostns.comns2.jethostns.com
jethostns.comanswers its DNS
MX
jonathankatz.com
jonathankatz.comreceives its email
TLS
jonathankatz.com
ZeroSSLissued its certificate

DNS Records

A 1

  • 15.204.159.118

MX 1

  • 10jonathankatz.com

TXT 1

  • v=spf1 ip4:15.204.166.97 ip4:15.204.150.176 include:spf.guardedhost.com ~all

NS 4

  • ns3.jethostns.com
  • ns4.jethostns.com
  • ns1.jethostns.com
  • ns2.jethostns.com

SOA 1

  • ns1.jethostns.com wedos.wedos.com

DMARC_RECORDS 1

  • v=DMARC1; p=reject; aspf=s

TLS Certificates (2)

Common NameIssuerExpires
jonathankatz.com C=AT, O=ZeroSSL, CN=ZeroSSL RSA Domain Secure Site CA Thu, 29 Oct 2026 23:59:59 +0000
ZeroSSL RSA Domain Secure Site CA C=US, ST=New Jersey, L=Jersey City, O=The USERTRUST Network, CN=USERTrust RSA Certification Authority Tue, 29 Jan 2030 23:59:59 +0000

Subdomains (1)

The proof

Signed at scan time. Check the math yourself. Every line above is part of one signed observation. Re-hash it and check the Ed25519 signature in your own browser; the only network request the check makes is for the published public keys.

Verify this receipt

Ed25519 Receipt

Receipt ID
rcpt_733ac11e6aa302e3
Output Hash
856d27febb3d9a1f4452689115da4214db93aed3a146d2268ed77ca6237c5e05
Signature
ed25519:7fabd93a9a781aec48f66ff4c4908f9b75f387e0ecbea99df0003ca6eab22a39e9ff2608c196789eee07ecbca140e9e01327a2fbf94132c07ddb6544cc184e05
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
Verify this in your browser
CONTINUOUS INTERNET TELEMETRY24H DRIFT47,166 material changesacross 45,138 domains · last 24h · +3,084 vs yesterdayROTATION66 domains moved DNS from koaladns.com to magpiedns.com, 62 moved backa rotation loop, not a migration · 24hNOW493 curated domains not reachablelast probe, steadySITE ERRORS36,517 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 116,183 sites429 rate-limit / 403 bot-block, a posture signal